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Howlett" , Vlastimil Babka Cc: linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-block@vger.kernel.org, linux-security-module@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-pm@vger.kernel.org, linux-pci@vger.kernel.org, Andreas Hindborg , driver-core@lists.linux.dev, Andreas Hindborg X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1098; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=MTxQNyPl556p/37N9iYrjSR5gCSkwSCTZpMY90B8pEY=; b=owEBbQKS/ZANAwAKAfpQKQiqxb3QAcsmYgBqIdvvpNub7j04mvxMdRLdPaAd/MQZCqnEQ9G7x 6NHPMMF+bKJAjMEAAEKAB0WIQRXitnI2WZ2JirAaob6UCkIqsW90AUCaiHb7wAKCRD6UCkIqsW9 0MI+D/0QPO+RBFAbjZRXC9pKgYwjFXnKxpO8ZzAKgdud2wdZcrmS6XnxjFCuPYPaFQ93AhOYZJa 4HV8ITv5TB34RklZib+C1ex0+Q7HyqZjU22svIR16LfDNFX/PzVeBvcMhmc1WvMZxfKE72VeYMD lG1FuQHv/rWnofDymriWJ1qTmmIh7KcWTZTBWOBoRgKjjYMflJitin0NXq39YIxXu1MqcEGW20v ceF6r4JVyWfA1qLVdGeuXR56Z/tP/9demSf0WEz4n/JNfPwSO2fQGqgHU5Wl5QkOeyepnUg4nCf V7AX9lwpje33yM15jdHfXun61mNZa7LYV/QZyVny/IV39nPfxrEMJMFFzFZhx3H9v6+wmG7Rl7h cOtjeMyzfmUxEJ95Tx/gR6H9Lv9v03K0ZTh/L5YdaCZvaNDy0gi0KOnWUL1eP93qbY2kiyZmE5f t+Xfj7TX4TebKhIwyEuO/uBVPqXJyZTHt2mkjJ2wP+OAjZlc3btrRL3brJE0UGHxHzedtn8XHk8 TyidsBvAMRGQ+VtyZO8Vi+OXdrfsKfO4XV4jyBjM1uPFGEafgzam59BvvN/aO0sZQB62OEFCXKc SQoUbEQRjie1O1BooUeWFUAPW1OpcbGv5nlsQmCDSxE49cATUzyJjv+bd3ihJjA8yLKgc8vmC5j m2qAWViBmLjYVlA== X-Developer-Key: i=a.hindborg@kernel.org; a=openpgp; fpr=3108C10F46872E248D1FB221376EB100563EF7A7 X-Rspamd-Queue-Id: D878240012 X-Stat-Signature: uwwe83n7g6f78z4ns84bfxtmbci77t58 X-Rspamd-Server: rspam03 X-Rspam-User: X-HE-Tag: 1780604095-253163 X-HE-Meta: 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 jXw/ThzV 6VPJTz/bax1gW2bMT6IT7rqV9XxBUWOoA3gh/aDUByABxwK8eEME2onEEuPfh3uUH96hrjzaqBveCJI+or7Hqy4bcZRiFq6gwGh6sh1cdWFtQM0rZj9fZlzBR/tqAwzSI2n/30kCwviVohz+gYMTQJsMvpZ91CyGIN5kurBk6N75Uag3iIkbDoppdT9oNndjp8mWaSbVeuj9alMb+fj07Cw93Fz7xMwdxcmIpQ6tOYI0sfJMRREETCUdxqYubZj+fOHbzUIi+VtJ+zYUtNMkNPqUphNvhDyhFp2RgduaKgH3Jb1ethUSqqWf/X0WbjAaQc7gj9S+9fdnqowA= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Andreas Hindborg Add a method to `Page` that allows construction of an instance from `struct page` pointer. Signed-off-by: Andreas Hindborg --- rust/kernel/page.rs | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/rust/kernel/page.rs b/rust/kernel/page.rs index 844c75e54134..d56ae597f692 100644 --- a/rust/kernel/page.rs +++ b/rust/kernel/page.rs @@ -214,6 +214,18 @@ pub fn nid(&self) -> i32 { unsafe { bindings::page_to_nid(self.as_ptr()) } } + /// Create a `&Page` from a raw `struct page` pointer. + /// + /// # Safety + /// + /// `ptr` must be convertible to a shared reference with a lifetime of `'a`. + #[inline] + pub unsafe fn from_raw<'a>(ptr: *const bindings::page) -> &'a Self { + // SAFETY: By function safety requirements, `ptr` is not null and is convertible to a shared + // reference. + unsafe { &*ptr.cast() } + } + /// Runs a piece of code with this page mapped to an address. /// /// The page is unmapped when this call returns. -- 2.51.2